Screening device for gas or liquids.



L. M. MERRILL.

SCREEMNG DEVICE FOR GAS 0R LIQUIDS.

APPLICATION FILED SEPT. 9. I914.

Patented Nov. 23, 1915.-

LUTHER M. MERRILL, OF JOPLIN,

MISSOURI.

SCREENING PEVICE FOR GAS OR LIQUIDS.

To all whom it may concern Be it known that I, LUTHER a citizen of the United States, residing at Joplin, in the county of Jasper and State of Missouri, have invented certain new and useful Improvements in Screening Devices for Gas or Liquids, of which the following is a specification.

My invention relates to screening devices for gas and liquids.

The primary object of my invention 1s to provide an improved means for mounting a screening element in a pipe line for facilitating the removal of the screening element from the pipe line in the case that the element, has become accidentally damaged or otherwise disfigured.

Another object of my invention is to provide an improved'means for operating the screening element for the purpose of clean- M. MERRILL,

E ing the same.

A further object of my invention is to provide a casing having means thereon for connection with a main pipe line and also having means for connection with an auxiliary pipe line or refuse receptacle, the easing being provided with means for limiting the movement of the screening element, the latter being so positioned as to register, at times, with either the main or auxiliary pipe lines for cleaning or screening purposes.

A still further object of my invention is to provide a device of the character de scribed which is simple in construction, eili cient in operation, and one that can be manufactured and placed upon the market at a minimum cost.

Other objects as well as the nature, characteristic features and scope of my invention will be more readily understood from the following description taken in connec-. tion with the accompanying drawings and pointed out in the claims.

Referring to the drawings :Figure 1 is a side elevational view of my invention; Fig. .3 is a longitudinal sectional view of the same showing to advantage the positioning of the screen and the means for limiting the movement of the same; and Fig. 3 is a cross sectional view on the axis of the journal of the screening element, -showing to advantage the means for mounting the element in the casing.

Referring more particularly to the drawings in which similar reference numerals designate corresponding parts throughout Specification of Letters Patent.

portion of which is Patented Nov. 23. 1915.

Application filed September 9, 1914. Serial No. 860,597.

the different views, I provide a substantially cylindrical casing 1, front the opposite sides of which project necks 2 and 3 which terminate in flanges 4 for connection in any suitable manner with the main line pipes, the inlet or the pipe from the reservoir being connected to the neck 2 and the outlet or the pipe leading to the device being supplied being connected to the neck 3. It must be understood that these pipes form no part of my invention but are merely referred to in order to clearly illustrate the purpose and operation of my invention.

The head of the casing 1 is enlarged at one side from the center thereof to provide a laterally extending, substantially rectangularly shaped housing 5, the lower inner surface of which is depressed to provide a recess 6 for a purpose to be hereinafter described. Removably secured to the outer edges of the housing 5 and conforming to the configuration of the sides of the housing, by means of suitable fastening devices, preferably screws 7, is a cover 8, the lower provided with an open ing 9 in which if. journaled a shaft 10, the latter resting in the recess 6 and having its free end journaled in a socket posite side of the-head of the casing 1.

Secured to one side of the shaft 10 midway its length by means of suitable fastening devices, preferably rivets 13, is a substantially semicircular supporting plate 1- the latter having a portion of its lower edge arranged in close relation with the inner surface of the head of the casing and has secured to its outer side thereof and cimtornn ing to the configuration of the same by nieans'or" suitable fastening devices 15 a screening element 16, the latter in this case consisting essentially of a cylindrical piece of screening having a suitable binding ele nient engaged upon its outer edge as shown at 17, the. upper edge of which binding element conforms to the contour and is arranged in close relation with the inner surface of the head of the casing 1.

For the purpose of operating the screening element 16 I have counterbored a recess 18 about the opening 9 in the cover 3 and placed therein suitable packing material 19 and in which opening is screw threaded a gland 20 which gland and packing prevent the escape of gas or liquid from the interior of the casln and the outer face of which gland formsa caring tor the handle 21 rigidly secured tothe squared portion 22 of the shaft 10 and which handle is held'in place by means of a nut 23 screwthreaded on the against the surface of the handle.

It can be seen uponjr'eference to the drawings that the handle 21 and screening element 16 are arranged in substantially the same plane so 'th." t when the handle is moved in one direction the screening element will move in the same direction.

For the purpose of cleaning the screening element 16 I have provided the bottom of the casing 1 with an opening 24. which has projecting therefrom a neck the latter terminating in a flange 26 for attachment with an auxiliary valve control outlet pipe or dirt receptacle not shown). The bottom of the casing'ahout the opening is provided with an annular depressed portion 27 for the reception at certain intervals of the screening elemeht lli. It can be easily seen upon reference to the drawings that the movement of the screening element 16 is limited by the walls of the housing 6 and the base. of the casing l, which walls and base respectively hold the element 16 in a Vertical and horizontal position. When in a vertical position it can be easily seen that the element will effectively purify the gas or liquid passingv from the main reservoir to the device being supplied and when it is desired to clean the same all that is necessary is to turn the handle until the screenin; clement rests in the depressed portion 527, the gas or liquid will then pass through the screening element in an opposite direction and thus clean the screening element practically instar ly.

It will be noted from the above description, from the peculiar formation of the housing and the arrangement of the shaft therein that by the removal of the cover 8 access may be had to the interior thereof in the case that the screening had become damaged. The screening element may be then.

removed from the supporting frame and a new one secured thereto and the first fnentioned parts again assembled. Particular stress is laid upon this feature because of the fact that it enables the operator to gain acccss to the interior of the casing and obviates the necessity of disconnecting the connections 4 from the main pipe lines. It is also thought to be within the scope of applicants invention, although the same has not been shown, to mount any ordinary form of valve in the lower end of the neck 25 of the casing and thus obviate the necessity of the attachmentof either the auxiliary-pipe line'or a dirt receptacle. This could only be done in cases-where the pipe line is so positioned that the discharge therefrom would'not interfere or seriously damage the building. I

It will be understood that the above description and accompanying drawings eomp'rehend only the general and preferred'qnn-j bodnnent of. my invention and that various extreme outer end of the shaft and bearing;

minor. changes in detail of construction,

, proportion and arrangement of ihe parts may be. made within the scope o theiag pended claims and without sacrificing any .i the advantages of my invention.

What is claimed is:

1. In a screening device for gases or liquids, a cylindrical casing formed with diametrically opposite means for coupling the casing in a main pipe line, and with a dis charge opening out of line with the said coupling means for connection withimeoeptacle and a screening element pivotaily mounted in the bottom. of said casing for registering, at times, with one of the main pipe line openings and the discharge opening, substantially as described and for the purpose set,forth. p

2 In a screeningdevice for gases or liq uids, a eylindrical'casing formed with dia metrically opposite means forcoupling the casing in a main pipe line, and with a dis charge opening out of line with the said coupling means for connection with a- .-re

ceptacle, a screening elementpivotally mounted in the bottom of said caslng for registerlng, at times, with one of the main pipe line openings and the discharge open ing, and means disposed on the outer side of said casing for operating said screening element.

3. In a screening device for gases or liq quids, a cylindrical casing formed with diametrically opposite means for coupling the casing in a main pipe line and with a discharge opening out of line with the said coupling means for connection with a receptacle, a housing extendir r from said cas ing adjacent said discharge opening, a removable closure for said housing, a screenmg element plvotally mounted in the bot-.

tom of said housing for registering, at times,

with one of the main pipe line openings and the discharge opening, and means disposed on the outer side of said cover and in alinementwith said screening element for operating said screening element.

4. In a screening device for gases or liquids, a cylindrical casing formed withdiamet ically opposite means for coupling the casing in a main pipe line and with a discharge opening out of line with said coupling means for connection with a receptacle, a housing extending from one'side of said :asmg ad acent said discharge opening, a removable closure for sald housing, a shaft rotatably mounted in the bottom of said housing, one end of said shaft extending through said closure, asupporting frame carried by said supporting element forregistering, at times, with one of the main pipe line openings and the discharge opening.

o said shaft and arranged in alinement '11 saidsoreening element for operating screening element.

. In a screening device for gases or liqn eyiinciricel casing formed withdiag in a main pipe line and with a diso'pening out of iine with the said 1 g means for connect-ion with e recep- .e subsc-snfiially rectangular housing 2 .ing from one side of said casing, ad-

1 discharge opening, the bottom housing provided was; a recess, a vsbie oiosuz'e for saicl housing provih an opening adjacent the lower -h hen iie formeci upon the'outer end and "went carried by said shaft for registering, at times, with openings and the discharge opening, means aily onposite means 02' coupiing the.

edge thereof, a shaft jonrnaled in said opening and in the opposite side of said casing resting in said recess, a screening eleone of the main pipe line onithe free outer end of said shaft for operating said screening element, and means disposed in said cover about said shaft for eflecting a gas or water tight joint.

In testimony whereof I afiix my signature in presence of two witnesses.

LUTHER M. MERRILL. Witnesses t R. M. RAMSEY, E. A. HAMILTON. 

